MAX9929FAUA

更新时间： 2024-11-14 07:16:11

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
14页	257K
描述
-0.1V to +28V Input Range, Micropower Uni-/Bidirectional, Current-Sense Amplifiers

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MAX9929FAUA 数据手册

19-4251; Rev 3; 4/12

-0.1V to +28V Input Range, Micropower,

Uni-/Bidirectional, Current-Sense Amplifiers

8/MAX29

General Description

Features

The MAX9928/MAX9929 low-cost, uni-/bidirectional,

high-side, current-sense amplifiers are ideal for moni-

toring battery charge and discharge currents in note-

books, cell phones, and other portable equipment.

These devices feature a wide -0.1V to +28V input com-

mon-mode voltage range, low 20µA supply current with

o Wide -0.1V to +28V Common-Mode Range,

Independent of Supply Voltage

o 2.5V to 5.5V Operating Supply Voltage

o 20µA Quiescent Supply Current

o 0.4mV (max) Input Offset Voltage

o Gain Accuracy Better than 1% (max)

o SIGN Output Indicates Current Polarity

less than 0.4mV, and a gain accuracy better than

1.0%. The input common-mode range is independent

of the supply voltage, ensuring that the current-sense

information remains accurate even when the measure-

ment rail is shorted to ground.

o Transconductance and Gain Versions Available

5µA/mV (MAX9928F)

The MAX9928F features a current output with a transcon-

ductance ratio of 5µA/mV. An external resistor converts

the output current to a voltage, allowing adjustable gain

so that the input sense voltage can be matched to the

maximum ADC input swing. The MAX9929F has a voltage

output and integrates a 10kΩ output resistor for a fixed

voltage gain of 50V/V.

50V/V (MAX9929F)

o Pin Compatible with the MAX4372 in UCSP

o Available in Ultra-Small, 3x2 UCSP

(1mm x 1.5mm) and 8-Pin µMAX Packages

A digital SIGN output indicates direction of current flow,

so the user can utilize the full ADC input range for mea-

suring both charging and discharging currents.

Applications

Monitoring Charge/Discharge Currents in

Portable/Battery-Powered Systems

The MAX9928/MAX9929 are fully specified over the -40°C

to +125°C automotive temperature range, and available

in 6-bump UCSP™ (1mm x 1.5mm) and 8-pin µMAX^®

packages. The UCSP package is bump-to-bump com-

patible with the MAX4372_EBT.

Notebook Computers

General-System/Board-Level Current Monitoring

Smart-Battery Packs/Chargers

Precision Current Sources

UCSP is a trademark and µMAX is a registered trademark of

Maxim Integrated Products, Inc.

Smart Cell Phones

Super Capacitor Charge/Discharge

Pin Configurations and Typical Operating Circuit appear at

end of data sheet.

Ordering Information

PART

OUTPUT TYPE

Current

GAIN

PIN-PACKAGE

8 µMAX

TOP MARK

—

MAX9928FAUA+

MAX9928FABT+T

MAX9929FAUA+

MAX9929FABT+T

= 5µA/mV

Current

3x2 UCSP

8 µMAX

+AAF

—

Voltage

A = 50V/V

Voltage

A = 50V/V

3x2 UCSP

+ADI

Note: All devices are specified over the -40°C to +125°C operating temperature range.

+Denotes a lead-free/RoHS-compliant package.

T = Tape and reel.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...14

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与MAX9929FAUA相关器件

型号	品牌	获取价格	描述	数据表
MAX9929FAUA+	MAXIM	获取价格	-0.1V to 28V Input Range, Micropower Uni-/Bidirectional, Current-Sense Amplifiers
MAX992EKA	MAXIM	获取价格	Comparator, 2 Func, 7000uV Offset-Max, 210ns Response Time, PDSO8,
MAX992EKA+	MAXIM	获取价格	Comparator,
MAX992EKA+T	MAXIM	获取价格	暂无描述
MAX992EKA+T	ROCHESTER	获取价格	DUAL COMPARATOR, 7000uV OFFSET-MAX, 210ns RESPONSE TIME, PDSO8, SOT-23, 8 PIN
MAX992EKA-T	MAXIM	获取价格	High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators
MAX992ESA	MAXIM	获取价格	High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators
MAX992ESA	ROCHESTER	获取价格	DUAL COMPARATOR, 7000uV OFFSET-MAX, 210ns RESPONSE TIME, PDSO8, 0.150 INCH, SOIC-8
MAX992ESA-T	MAXIM	获取价格	Comparator, 2 Func, 7000uV Offset-Max, 210ns Response Time, CMOS, PDSO8, 0.150 INCH, SOIC-
MAX992EUA	MAXIM	获取价格	High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators

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